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(11) Patent No : AP 1946 (73) Applicant(s)
(21) Application No : AP/P/2005/003398 ELECTROMAGNETIC GEOSERVICES AS, Stiklestadveien 1,
(22) Filing Date : 17.03.2004 Norway
(24) Date of Grant & 04.02.2009
(45) Publication :
(30) Priority Data (72) Inventors
(33) Country (31) Number (32) Date EIDESMO Terje, Norway
GB 0306059.7 17.03.2003 ELLINGGSRUD Svein, Norway
FARESTVEIT Anders, Norway
(84) Designated State
GH KE MZ NA TZ HONEY & BLANCKENBERG
(51) International Classification G01V 3/12 (2006.01) G01V 11/00 (2006.01)
Method and apparatus for determining the nature of submarine reservoirs.
A system for investigating subterranean strata. An electromagnetic field and a seismic event are applied from the same location and the responses are detected using respective receivers both located at a second location spaced from the first. The responses are combined to identify the presence and/or nature of subterranean reservoir. The refracted wave components are used.
(56) Documents Cited : WO 02/14906 A US 4 617 518 A US 2003/043692 A